[Central-Electronics] Question on the CE100V 200V circuit

[Lee Craner]

List members:

I'm confused on the function of a bit of the circuitry on the 100V and 200V.  

The driver bias line runs to pin 9 of the 2nd mixer coil set.  However, there is a wire (white) that runs from this connection to pin 13 of the buffer coil set.  Also connected to pin 13 is a 2 uuF cap that connects to the 6-5 MHz VFO signal.  I can see that pin 13 is simply used as a tie point, but I can't understand what purpose this white wire serves.  The bias voltage would be blocked by the 2 uuF cap and I see no reason to feed the VFO signal to the back end of the 2nd mixer coil set.

Can anyone unconfuse me?

73
Lee WB6SSW